King door Radoors 28X includes several elements-a frame consisting of the upper and lower king and standing, and a panel. As a panel, or, as it is called, filler, decorated wooden panels and glass are used. The increased strength of the interior doors of the X series is also due to the Assembly scheme. Standing are made on the principle of "sandwich" (MDF + solid pine), which allows you to achieve maximum rigidity. Doors do not crack and do not deform under the influence of moisture and temperature changes.